private DataTable selectFrHistoryRfidMhsTerakirbyProdi(string prodi)
{
DataTable dt = null;
cDatabase db = new cDatabase();
cQuery qr = new cQuery();
dt = db.selectData(qr.qSelectLastHistoryRfidByProdi(prodi), '3');//konek ke tabel history_rfid
return(dt);
}